Also called the mounting hardware, the skateboard hardware is useful in connecting the trucks to the deck. Every truck is actually in need of 4 bolts and locknuts. If you are planning to buy hardware for your custom skateboard, then note that they are often sold in sets composed of 8 parts, though it is also possible for you to buy individual parts separately when required.
The wheels of a skateboard are usually made of polyurethane, and come in many different sizes and shapes to suit different types of skating. Larger diameters (55–85 mm) roll faster, and move more easily over cracks in pavement and are better for transition skateboarding. Smaller diameters (48–54 mm) keep the board closer to the ground, require less force to accelerate and produce a lower center of gravity which allows for a better response time, but also make for a slower top speed and are better for street skateboarding. Wheels also are available in a variety of hardnesses usually measured on the Shore durometer "A" scale. Again like car tires, wheels range from the very soft (about Shore A 75) to the very hard (about Shore A 101). As the A scale stops at 100, any wheels labeled 101A or higher are harder, but do not use the appropriate durometer scale. Some wheel manufacturers now use the "B" or "D" scales, which have a larger and more accurate range of hardness. Modern street skaters prefer medium-sized wheels (usually 51–54 mm), as small wheels with lighter trucks can make tricks like kickflips and other flip tricks easier by keeping the center of gravity of the skateboard closer to the deck, thus making the deck easier to spin. Street wheels are harder (A 100/A 101). Vertical ramp or "vert" skating requires larger wheels (usually 55–65 mm), as it involves higher speeds. Vert wheels are also usually slightly softer (A 98/ A 99), allowing them to maintain high speed on ramps without sliding. Slalom skating requires even larger wheels (60–75 mm) to sustain the highest speeds possible. They also need to be soft and have better grip to make the tight and frequent turns in slalom racing. Even larger wheels are used in longboarding and downhill skateboarding. Sizes range from 65 mm to 100 mm. These extreme sizes of wheels almost always have cores of hard plastic that can be made thinner and lighter than a solid polyurethane wheel. They are often used by skateboard videographers as well, as the large soft wheels allow for smooth and easy movement over any terrain.
So with your back foot, you want to kick the tail of your board down and right when it touches the ground you jump in the air off your back foot.  This is the ‘pop’.  It takes a little bit of getting used to but most beginners don’t really understand that initially, your back foot is doing most of the work.  Then bring your knees up to your chest after the jump, the higher up you pull your knees the higher up your skateboard can go!

Jump – Ah yes, finally, we have reached the move itself. Basically, you have to do about twelve different things all at once to execute a successful ollie-pop: lift your front foot, press down with your back foot, angle your front ankle,  and jump. Lift the front foot off the ground first, and then move your back foot. This whole process is easier if you’re actually moving forward – since you don’t have to fight for balance – but it can be done while you’re standing still as well.
The wheels are also impressive. Unlike some other skateboards that have wheels that are quite stiff, causing them to feel like they will lock up when you ride on them, the wheels in this complete skateboard for beginners are smooth and comfortable. These are also easily controllable, so rest assured that they offer a smooth and friction-free glide.
I found that my problem was unclear instruction about the timing between jumping and popping. One day when I was watching a slowmo ollie video though, I noticed that the skateboarder already was beginning to jump (at least his body was already going in an upward motion) before snapping the board off the ground. That was a critical change I needed to make in order to get it working. I had been trying to pop the board while all my weight was still pushing down on it (kind of an obvious mistake, but I somehow overlooked this). Hope this helps somebody.
My son seems to have a lot of fun riding this skateboard. He will be out there doing tricks for hours. One evening when he took a break, I decided to see if I could still ride. When I took off down the driveway, I could feel how smoothly the wheels rolled. I used to have to pay extra for wheels like this when I was his age. Lost in thought, I coasted faster, and my neighbour didn't see me when I shot out of the driveway. Even though this thing flew several feet in the air, bounced, and came to rest more than 20 feet away, it had no visible damage! Not so for me. I loved the skateboard, but am now recovering from two broken ribs, torn neck cartilage, and a cracked pelvis. Still, this board rides like a dream!
In the case that you didn't gave up after a hundred over tries, you'll start to develop a reaction to landing it. After a few hundred more tries, you'll feel you are getting off the ground and getting little air. And once you reach the thousandth try, you'll already be doing it whilst rolling and the next thousandth tries will be spent on clearing small cracks n obstacles and working towards ollieng up bigger obstacles n up ledges.
Smile and wave – Feel free to look around at all the other people at the skatepark that stood by and marveled at your new-found accomplishments (all one of them). I’m sure by this point you’ll be picking up roses that are being thrown at your feet, and taking a well-deserved bow as they begin to chant your name. Take it all in, thank the crowd for their undying affection, and then go get a snow-cone. You deserve it, champ.